Apparatus for electrically operating a circuit breaker

Details Apparatus for electrically operating a circuit breaker Apparatus for electrically operating a circuit breaker

1988-06-23

1990-04-10

Scott, J. R.

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Contact-actuating means

200 17R, 200573, H01H 300

Patent

active

049164228

ABSTRACT:
An apparatus for electrically operating a circuit breaker comprising an electrically powered pawl which is driven by an electric motor for causing a ratchet to rotate and a release mechanism for causing the electrically powered pawl to move out of driven engagement with the ratchet when the ratchet rotates to a predetermined angle. A guide bar on which a spring is mounted is secured on a main frame. A slider is slidably provided on the guide bar. The slider engages with a handle of the circuit breaker and throws the circuit breaker when it slides on the guide bar. The slider is driven into sliding motion by a cam which rotates with the ratchet gear in a unitary motion and the slider compresses the spring on the guide bar. When the slider reaches up a position where the circuit breaker is turned off, the release mechanism causes the electrically powered pawl to move out of driven engagement with the ratchet.

REFERENCES:
patent: 4137439 (1979-01-01), MacLean

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